Fig. 5.

Evaluation of swallowing function by POCUS of the neck SG submandibular gland, TB base of tongue, HB hyoid bone, TC thyroid cartilage, TH thyroid gland, ES esophagus. a Image from the submandibular region: Salivation is promoted in the preceding phase. b Image from the submandibular region: A large amount of saliva is observed to be released from the submandibular gland, and the movement of the tongue mixes food and saliva. c Image from the submental region (transverse). d Image from the submental region (sagittal). e Transverse view of the lower part of the anterior neck